Just a FYI, GMG has max payne 3 on special and you can use the following code "GMG20-P4DLK-FKYRS" to get 20% off. Comes to a total of ~$10 and you can activate on steam. Pretty sure steam's max payne 3 has the aus rip off and never got close to $10 during their last sale. You can also get the multiplayer add ons in a complete version for a few bucks more but i doubt multiplayer on PC is still going.
Also, they have chivalry medieval warfare for $10 as well if you didnt already get that on steam sale and wanna get ur ass kicked by Toll.